One more reason I don't believe most people are consistant in their religious beliefs:
In death, their loved ones would be welcomed to Heaven. This is the ultimate goal. Therefore, death would be celebrated. It would be a happy time for all who truly care about the one they lost. Yet, funerals are full of mourning and sadness. Tears flow regularly.
If people truly believed in Heaven, and that their loved ones end up there, they would not see death as such a sad event.
But they do.
And that is because they don't truly believe what they claim to believe.